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BUY TOP210 https://www.utsource.net/itm/p/887721.html
Three-terminal Off-line PWM Switch
TOP210 is a high-voltage integrated circuit (IC) manufactured by Power Integrations. It is a monolithic, high-voltage, high-efficiency, off-line switcher IC with an integrated 700V power MOSFET. It is available in a DIP-8 package. The TOP210 is designed to provide a cost-effective, high-efficiency solution for off-line power supplies. It features a wide input voltage range of 85-265VAC, a low start-up current of 10mA, and a low operating current of 20mA. It also features over-voltage, over-temperature, and over-current protection. The TOP210 is suitable for a wide range of applications, including LED lighting, consumer electronics, and industrial equipment. It can be used to power AC/DC adapters, chargers, and other low-power applications. (For reference only)